Abstract
The mechanism of overaging is explained, and the time is estimated in which structural changes should occur in alloys hardened with Ni3Al, Al2O3, Fe3C, TiC, and TiN. It is found that particles of the intermetallic, carbide, or nitride of 200A radius would dissolve at 1340°F in a nickel-base matrix within minutes or hours while the size of the oxide particle would not change appreciably within several hundred years.
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References
N. F. Mott and F. R. N. Nabarro: Report on Strength of Solids, p. 1. Physical Society, 1948. London.
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P. A. Flinn: Private communication.
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TP 4415E. Manuscript, July 16, 1956. New Orleans Meeting, February 1957.
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Cochardt, A.W. Some estimates of the thermal stability of dispersion-hardened alloys. JOM 9, 434–437 (1957). https://doi.org/10.1007/BF03397894
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DOI: https://doi.org/10.1007/BF03397894